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» Distinguishing Attacks on the Stream Cipher Py
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FSE
2006
Springer
174views Cryptology» more  FSE 2006»
13 years 7 months ago
Distinguishing Attacks on the Stream Cipher Py
The stream cipher Py designed by Biham and Seberry is a submission to the ECRYPT stream cipher competition. The cipher is based on two large arrays (one is 256 bytes and the other ...
Souradyuti Paul, Bart Preneel, Gautham Sekar
WEWORC
2007
162views Cryptology» more  WEWORC 2007»
13 years 4 months ago
New Attacks on the Stream Cipher TPy6 and Design of New Ciphers the TPy6-A and the TPy6-B
The stream ciphers Py, Pypy and Py6 were designed by Biham and Seberry for the ECRYPT-eSTREAM project in 2005. The ciphers were promoted to the ‘Focus’ ciphers of the Phase II ...
Gautham Sekar, Souradyuti Paul, Bart Preneel
INDOCRYPT
2007
Springer
13 years 9 months ago
Related-Key Attacks on the Py-Family of Ciphers and an Approach to Repair the Weaknesses
The stream cipher TPypy has been designed by Biham and Seberry in January 2007 as the strongest member of the Py-family ciphers, after weaknesses in the other members Py, Pypy, Py...
Gautham Sekar, Souradyuti Paul, Bart Preneel
ASIACRYPT
2006
Springer
13 years 7 months ago
On the (In)security of Stream Ciphers Based on Arrays and Modular Addition
Abstract. Stream ciphers play an important role in symmetric cryptology because of their suitability in high speed applications where block ciphers fall short. A large number of fa...
Souradyuti Paul, Bart Preneel
ISW
2007
Springer
13 years 9 months ago
New Weaknesses in the Keystream Generation Algorithms of the Stream Ciphers TPy and Py
The stream ciphers Py, Py6 designed by Biham and Seberry were promising candidates in the ECRYPT-eSTREAM project because of their impressive speed. Since their publication in Apri...
Gautham Sekar, Souradyuti Paul, Bart Preneel